# The Air Quality (Ozone) (Wales) Regulations 2003, Paragraph 2


Forecast for the following afternoon, day or days:
(a) the geographical area of expected exceedances of an information threshold or alert threshold; and
(b) the expected change in pollution (that is, improvement, stabilisation or deterioration)

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Source: https://www.legislation.gov.uk/wsi/2003/1848/schedule/7/paragraph/2 (the official version)
Page: https://openlegislation.uk/air-quality-ozone-wales-regulations-2003/schedule-7/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.